O'Brien posted a score of 94 points to finish in third place behind gold medalist Silje Norendal of Norway, who posted a score of 96 points, and American Jamie Anderson, who posted a score of 95.66 points.
For O'Brien it was third career Winter X Games medal in slopestyle skiing. She previously won a silver medal in 2009 and a bronze medal in 2013.
Even though O'Brien is the reigning world champion in women's slopestyle snowboarding, one could argue the level of competition is significantly higher at the Winter X Games than the World Championships.
For O'Brien the focus will now clearly be on the 2014 Olympic Winter Games in Sochi, where she will try to become the first Canadian to medal in the sport of women's slopestyle snowboarding as the event is making its debut at the 2014 Olympic Winter Games in Sochi.